[OAK-4144] Expose PropertyIndex stats

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.31, 1.2.15, 1.4.3, 1.5.1, 1.6.0
• Component/s: query
• Assignee: Chetan Mehrotra
• Reporter: Chetan Mehrotra
• Created: 23/Mar/16 09:20
• Updated: 08/Oct/19 15:22
• Resolved: 01/Apr/16 06:40

Description

It would be good to have some stats exposed around property index specially for those based on ContentMirrorStoreStrategy

The index structure is like

oak:index
  + status
    + :index
      + PASS
        + etc
          + workflow
            + instance
              + a
                - match = true
      + FAIL
        + etc
          + workflow
            + instance
              + b
                - match = true

1. List of values being indexed - Like FAIL, PASS etc or count
2. Path of content being index - Say path upto 3 levels where given property exists. For above case it would be /etc/workflow/instance

#2 can be used to come up with right values for includedPaths OAK-3263. Having includedPath has benefits in terms of

1. Faster reindexing times
2. Make commits faster - Each property index currently contributes one IndexEditor and this editor would participate in each commit. If number of property indexes are high then it would lead to slow down in commit rates (OAK-1273). So having includedPath would allow reduction in number of editors that participate in a commit

Issue Links

• is related to: OAK-4647 Multiplexing support in PropertyIndexStats MBean
• relates to: OAK-3263 Support including and excluding paths for PropertyIndex
• relates to: OAK-4164 Expose path stats for Lucene index